Contra las cuerdas is an Argentine sports-orientated telenovela. It was recorded during 2010. The show stars Rodrigo de la Serna, Soledad Fandiño and Osmar Núñez. Plot Contra las cuerdas is about a b
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bc21cb90d40d9e4088aeade7f9d5a2813db44b4e8d528db7485df5b1824b6a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/908f7178-a7ce-4165-bc4b-d388b91c37d2.json and https://artists.proofprofile.net/proofs/artist/908f7178-a7ce-4165-bc4b-d388b91c37d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baab7d1278548a64e76ebb6c504c3d888b6f7cdf03792c360792a0a49037723. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB140705802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a8133ad6f9156dfbe102d512951eb15996d425a51a1148ff52595b47a46e62. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB140705808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aa42f21c581dd7acc18c67006280b942be3f3e436db2c8343efb192332a1fa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB140700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138a749edbec39647b74100348d7c319d4e7308612926b5c9fb37af064d2a342. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB140700312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fec66f4c5a46aa21e9f7470db37e0d443e9b4f8c30f83faf35896ad9cc62f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7b6394d30abf9e68b6788ed412f15e99bf78df347c1df0b08e7f3f1eda033f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587e0639a596e3a8e77e2c8648dc77e8b95b8d4a8e565d6b40b2a358801202f9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe605b234b9e33690376165f83c2b371839aa05601b9acfbf0a2f934ad566b615. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda5704c7d6ed0949c3dce52b361f87cc78b6b587eaf66166c0c5ef534a0de3a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600953.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5feca8f63d4af87c505c5cdc1d135c0457ec01e58878361e8bfcb7ce083aed1f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb04a7a4965d42c538054b1674f9b766740d2298a698f4cb724303919bb32650. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36435df2b2fe9b56fccba63905d69e8a0f8505b69c34859fdf3daeba168510a8. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7d99e0c6a585e59c363103b79ecc5d775f7a4f7e83f7efa6810e76c8923d49. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d913bff5bcc1e4bdcf5c2716af229e838cb062f5e972c29a428aa83fb5eb208. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14cd4a3c0e174a1c87842abfd3e02720e92ad3019f17dbfa10d20c6d7d99aa6. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0960f3379a475296b0b9c55d15b2791d72f95c163e58400bce10e75e6255b2. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC571600963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d284bf7c747628fdf76055c21f8a039c11f38c6fe9a475e000b26c47df4ef27. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715a288e08a8d180752ad6c6aa3c531e75d104378ff02707573719c3b01d9eed. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cdb01e8eff4c29e5aae760b4a558ec547217909a7678750c82df2173d32bc4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2af29f4e3e1edd7bb1305025fe595adbab34d74dc4b1bc8027703f8a60e511. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e646887e6615db62080b99f76c3e6bbaf0032bdbda5d9cb4286857adb382160. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e5a5f40c7eb7133b9de587ce8ef587fd44ca136d670fc28851801754b48056. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f5986fe124e80e7dc2e6133804150409292b245d218a83632e93a803140702. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6f6e513a8ff635626d66b937148af9a6569d88fd0e8608c8b7e60467c681ed. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf238a43d266015bb4c437f034c4846f8d0e34cb6f902626c5ef8db57b34191. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281787344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704c9f62a63327a86e095bb003ed64af640a2a0631f4faf77f08b475b5e65da7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2056064.